but then modified by removing the bar mount from the base, adding a piece of angled bracketry that I can reattach the bar mount to, such that the light can then be mounted to the seat post, sticking out behind it.

A guy I work with has an insanely bright rear light(I think it is a Hope one), the only thing I'd say is that because its so bright you try to avoid looking at it, its almost like a car fog light. What I'm trying to get at is that it might not be the best idea to partially blind a driver who is trying to get past you.

and swap the led pills over, giving me a white t6 torch, and a red luxeon k2 tail lamp.

Is it as easy as that or have I missed something?

Just out of curiosity I tried something similar by bodging a lezyne femto lens on to an exposure diablo. I'm not familair with the light you have posted but the diablo is a measured 900 lumens, so plenty bright.

With the extra red lens on it it didn't appear meaningfully brighter than the exposure red eye I had beside it. Now, obviously it's not exactly the same because the diablo effectively had two lenses, but still. Considering it's such a powerful light to begin with I was disappointed with the results and would just buy a red-eye tbh.

YoKaiser What I'm trying to get at is that it might not be the best idea to partially blind a driver who is trying to get past you.

Well you can't talk about blinding drivers in a positive way but I think you have to consider drivers coming from behind from a distance away. Something like a hope district will allow drivers to be aware of your presence from a good distance back. I've been driving myself and not seen cyclists till I was almost on top of them. given the choice I'd rather be an irritating, but visible nuisance than an invisible corpse.

the only thing I'd say is that because its so bright you try to avoid looking at it, its almost like a car fog light. What I'm trying to get at is that it might not be the best idea to partially blind a driver who is trying to get past you.

Absolutely right, unless

You point them down and they create a nice pool of light behind you. Also they are good in daylight when it is just a bit dull.

Having seen a few this last week that must be hope districts or similar, that is the effect I'm after. yes it could be annoying if you angle it up, so don't. What I think I've noticed though is those lights are so bright the bike doesn't look like a bike until the driver is past you, it looks like a motor cycle. My perception is that motorcycles get more room, perhaps the poor drivers know motor cycles need space, or perhaps they just think they are big enough to do nasty damage to their cars and don't think pedal cycles would. whatever the reason, the sod off, fog light bright rear lights are something I am considering.

muddyfunster, what you dewcribe sounds differnt. I'm thiking of changing the emitter to a ~200/250 lumen red led, sounds like you put a red filter/lens over a white led?

BTW, I currently run 3 of these (one on me, one solid on the bike, one flashing on the bike)
this is 'good enough' to be seen quite easily, but you still look like a bike.

what's the experience of the lyzne femto? I thik I've seen a couple of these this week and noticed they wer small and brighter than the smart superflash.

this is 'good enough' to be seen quite easily, but you still look like a bike.

You want a big lens to pass for a bigger vehicle, like the size of old everready lights. That way you don't look like something a long way away (worse with front LEDs that are super-bright and worse again if they're flashing)

Would you believe OO have their lights on discount at the minute, or you could pay more for the almost identical smart branded versions.

Bright lights just dazzle other road users its as bad as a motorist leaving their high beams or fog lights on in clear conditions and just gives them another excuse for hitting you or swearing as they pass.

Quantity and positioning of lights is the key thing IMO, a constant light gives a better fixed reference for them to gauge distances a complimentary flasher can draw a bit of attention and a red LED on the back of your lid, being that bit higher has a better chance of being spotted from a distance or over other vehicles and road furniture...

White LED's are producing a lot of blueish light and a fluorescent coating is reacting to make white. Putting a red filter on that is making it very inefficient. Might be why it wasn't as bright as you hoped.

got 2 red eyes - one on helmet one on bike and a smart lunar 1 watt on rack (same generic lights that the PDW is) pointing back. - mostly for the short stretch coming into the village where folks think its acceptable to do 100 mph - they certainly slow down .... that might be the high vis vest though thinking im the copshop.